diff --git a/src/test/bench/shootout-k-nucleotide-pipes.rs b/src/test/bench/shootout-k-nucleotide-pipes.rs
index 8030ca26721..79e187f3a64 100644
--- a/src/test/bench/shootout-k-nucleotide-pipes.rs
+++ b/src/test/bench/shootout-k-nucleotide-pipes.rs
@@ -69,7 +69,7 @@ fn find(mm: HashMap<~[u8], uint>, key: ~str) -> uint {
 // given a map, increment the counter for a key
 fn update_freq(mm: HashMap<~[u8], uint>, key: &[u8]) {
     let key = vec::slice(key, 0, key.len());
-    mm.insert_with(key, 1, |v,v1| { v+v1 });
+    mm.update(key, 1, |v,v1| { v+v1 });
 }
 
 // given a ~[u8], for each window call a function
diff --git a/src/test/bench/shootout-k-nucleotide.rs b/src/test/bench/shootout-k-nucleotide.rs
index 8efe3c7575f..dcb1e938077 100644
--- a/src/test/bench/shootout-k-nucleotide.rs
+++ b/src/test/bench/shootout-k-nucleotide.rs
@@ -66,7 +66,7 @@ fn find(mm: HashMap<~[u8], uint>, key: ~str) -> uint {
 // given a map, increment the counter for a key
 fn update_freq(mm: HashMap<~[u8], uint>, key: &[u8]) {
     let key = vec::slice(key, 0, key.len());
-    mm.insert_with(key, 1, |v,v1| { v+v1 });
+    mm.update(key, 1, |v,v1| { v+v1 });
 }
 
 // given a ~[u8], for each window call a function